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Selected:ATAM (Architecture Tradeoff Analysis Method)Eat the Frog ALPEN Method Failure Mode and Effects Analysis

Criterion	Architecture ATAM (Architecture Tradeoff Analysis Method)	Operations Eat the Frog	Operations ALPEN Method	Operations Failure Mode and Effects Analysis
Purposedifferent	ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation.	The method protects energy and attention for the task that creates the largest progress and is often postponed.	With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time.	For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability.
Complexitydifferent	High	Low	Low	High
Timedifferent	Several meetings plus preparation and analysis; total effort depends on scope	15-90 min daily	10-20 min daily	2-6 h
Participantsdifferent	Evaluation team, architects, and relevant stakeholders	1	1	3-10
Formatdifferent	Workshop + async	Async	Async	Workshop
Outputdifferent	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations	Priority Task, Completion Note, Daily Focus	Daily Plan, Time Estimates, Review Notes	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	ArchitectureQualityRiskTradeoffsStakeholders	PrioritizationProductivityFocusExecution	PlanningTime managementProductivityOperations	RiskQualityOperationsRoot cause

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